Oklahoma Police Ask FBI To Investigate Beheading Incident : The Two-WayA man, who police say recently tried to convert co-workers to Islam, allegedly severed the head of one of his colleagues after he was fired from his job.

" 'After conducting interviews with co-workers of Nolen, information was obtained that he recently started trying to convert co-workers to the Muslim religion,' Lewis said.

"Another co-worker who's also an off-duty Oklahoma County Sheriff's deputy shot Nolen, stopping the attack. Nolen and the other woman he reportedly attacked survived and were transported to a nearby hospital. Nolen had recently been fired from the warehouse and has a lengthy criminal record."

Of course, this incident comes after the self-proclaimed Islamic State, also called ISIS or ISIL, released videos showing the decapitation of several Westerners. MSNBC reports, however, that police say they do not have any indications that this was related to international terrorism.